{ "data": { "a": { "slug": "chrome-devtools-mcp", "name": "Chrome DevTools MCP", "vendor": "Google (Chrome DevTools team)", "vendorUrl": "https://developer.chrome.com/docs/devtools", "kind": "mcp", "category": "browser", "summary": "Lets coding agents control and inspect a live Chrome instance.", "url": "https://www.anchorterminal.com/tools/chrome-devtools-mcp", "markdownUrl": "https://www.anchorterminal.com/tools/chrome-devtools-mcp.md", "slimMarkdownUrl": "https://www.anchorterminal.com/tools/chrome-devtools-mcp.min.md", "jsonUrl": "https://www.anchorterminal.com/api/v1/tools/chrome-devtools-mcp.json", "repo": "https://github.com/ChromeDevTools/chrome-devtools-mcp", "license": "Apache-2.0", "transports": [ "stdio" ], "packages": [ { "registry": "npm", "name": "chrome-devtools-mcp" } ], "auth": "none", "authNotes": "Local process; supports custom WebSocket headers when attaching to an authenticated remote Chrome endpoint.", "pricing": "free", "pricingNotes": "Open source; no hosted service.", "priceSummary": "Free · OSS", "where": "local", "x402": { "level": "no", "evidence": "No payments. Local open-source server.", "endpoints": [] }, "toolCount": 59, "popularity": { "githubStars": 49300, "npmWeekly": 1500288, "pypiWeekly": null, "asOf": "2026-09-26" }, "docsUrl": "https://github.com/ChromeDevTools/chrome-devtools-mcp#readme", "registryName": "io.github.ChromeDevTools/chrome-devtools-mcp", "capabilities": [ "browser.control", "browser.debug" ], "tags": [ "official", "local", "open-source", "browser", "devtools" ], "lastRelease": "2026-10-15", "graded": true, "anchor": { "graded": true, "score": 75.4, "grade": "BB", "agentReady": true, "rank": 55, "ranked": true, "rankOf": 1210, "categoryRank": 2, "methodology": "0.6", "run": "2026-10-01", "scores": { "ergonomics": 73, "maintenance": 93, "payments": 60, "reliability": 83, "schema": 87, "security": 63, "transparency": 81 }, "pending": [ "performance", "tasks" ], "assessment": { "confidence": "high", "date": "2026-10-17" }, "negative": -1, "negativeNotes": [ "-1: two moderate advisories published by the maintainers, GHSA-3pvj-jv98-qhjq on 2026-06-15 (daemon.pid written through symlinks in the /tmp fallback directory) and GHSA-8qf9-62x2-82pp on 2026-06-16 (path validation not canonicalising symlinks before enforcing roots). Fixed and disclosed in public, so a small deduction (https://github.com/ChromeDevTools/chrome-devtools-mcp/security/advisories)." ], "verdict": "Performance traces, network inspection, heap snapshots and Lighthouse audits in one server. Usage statistics go to Google by default until you pass `--no-usage-statistics`.", "bestFor": "Coding agents debugging or profiling a web app they're building.", "strengths": [ "Performance traces, network inspection, heap snapshots and Lighthouse audits in one server", "Every tool carries `readOnlyHint`, and category flags and `--slim` cut the tool list from about 32 to three", "`--javascript-evaluation false`, URL allow and block patterns and MCP roots for least privilege", "Six releases in the last 90 days to 1.11.0 on 15 October 2026, CI on three systems and three Node versions, listed in the official MCP registry", "Reports go through Google's open-source vulnerability reward programme, and two advisories were published in public in June 2026" ], "weaknesses": [ "Usage statistics go to Google by default until you pass `--no-usage-statistics`", "`--isolated` and network header redaction are off by default, so the agent sees a persistent profile and raw headers", "1.8.0 made `pageId` required on page tools in a minor release, and 1.11.0 put two more tools in the default list", "SECURITY.md treats prompt injection from page content as the client's problem", "No `destructiveHint` on any tool, though 39 of 67 annotations mark tools as not read-only" ], "agentNotes": [ "Pass `pageId` on every page tool. Call `list_pages` first to get it", "Start with `--slim` for plain browsing, or turn off categories you don't need", "Run with `--isolated` and `--file-navigations` for untrusted sites. The default profile persists between runs and file: URLs are allowed", "Use `filePath` on large outputs such as traces and snapshots to keep them out of context", "Add `--no-usage-statistics` if the operator hasn't agreed to Google telemetry" ], "metrics": { "kind": "local", "measured": false }, "reviewCount": 8, "avgRating": 3.5, "history": [ { "basis": "public evidence", "confidence": "high", "grade": "BB", "methodology": "0.6", "pending": [ "performance", "tasks" ], "run": "2026-10-01", "runLabel": "October 2026 research run", "score": 75.4 } ], "editorialScores": { "ergonomics": 73, "maintenance": 93, "payments": 60, "reliability": 83, "schema": 87, "security": 63, "transparency": 76 }, "provenanceScore": 85, "checked": { "categories": { "ergonomics": "2026-10-17", "maintenance": "2026-10-17", "payments": "2026-10-17", "reliability": "2026-10-17", "schema": "2026-10-17", "security": "2026-10-17", "transparency": "2026-10-17" }, "last": "2026-10-17", "lastMoved": "2026-10-17", "oldest": "2026-10-17", "stale": false, "staleAfterDays": 90 } }, "connect": { "claudeCode": "claude mcp add chrome-devtools -- npx -y chrome-devtools-mcp@latest", "config": { "mcpServers": { "chrome-devtools": { "args": [ "-y", "chrome-devtools-mcp@latest" ], "command": "npx" } } } }, "letme": { "capability": "https://letme.dev/browser.control", "tool": "https://letme.dev/chrome-devtools-mcp" }, "sameCompany": [ "gemini-api", "gemini-embedding", "vertex-ai-tuning", "google-model-armor", "google-imagen", "google-veo", "google-lyria", "google-speech-to-text", "gemini-live", "google-adk", "google-secret-manager", "google-cloud-document-ai", "google-weather-api", "google-maps-platform", "google-cloud-translation", "google-calendar-api", "firebase-cloud-messaging", "google-drive-api", "gemini-enterprise", "gemini-cli", "google-search-console", "google-ads-api", "google-forms", "google-sheets-api", "gmail-api", "google-people-api" ], "area": "developer", "provenance": { "legalEntity": "Google LLC", "domain": "google.com", "domainRegistered": "1997-09-15", "domainNote": "Published by Google under the ChromeDevTools organisation on GitHub.", "endpointOnVendorDomain": null, "terms": "", "privacy": "https://policies.google.com/privacy", "statusPage": "", "changelog": "https://github.com/ChromeDevTools/chrome-devtools-mcp/blob/main/CHANGELOG.md", "securityTxt": "valid", "checked": "2026-09-26", "score": 85 }, "requirements": { "agentAlone": true, "card": "no", "freeTier": true, "credential": "none", "hosting": [ "self-hosted" ], "euResidency": "unknown", "trainsOnData": "no", "zeroRetention": "unknown", "selfHost": "yes" }, "pageJsonUrl": "https://www.anchorterminal.com/tools/chrome-devtools-mcp.json", "live": { "slug": "chrome-devtools-mcp", "versions": [ { "registry": "github", "name": "ChromeDevTools/chrome-devtools-mcp", "version": "chrome-devtools-mcp-v1.12.0", "released": "2026-10-22", "seenAt": "2026-10-25T08:41:05.93557846Z" }, { "registry": "mcp-registry", "name": "io.github.ChromeDevTools/chrome-devtools-mcp", "version": "1.12.0", "seenAt": "2026-10-25T13:19:48.465157604Z" }, { "registry": "npm", "name": "chrome-devtools-mcp", "version": "1.12.0", "seenAt": "2026-10-25T08:41:05.001072962Z" } ], "githubStars": 54099, "npmWeekly": 2262793, "securityTxt": { "url": "https://google.com/.well-known/security.txt", "state": "valid", "expires": "2030-04-01T00:00:00z", "checkedAt": "2026-10-25T15:28:18.34399579Z" }, "domain": { "domain": "google.com", "registered": "1997-09-15", "source": "https://rdap.verisign.com/com/v1/domain/google.com", "checkedAt": "2026-10-25T13:58:30.655543202Z" }, "pages": [ { "url": "https://raw.githubusercontent.com/ChromeDevTools/chrome-devtools-mcp/main/CHANGELOG.md", "kind": "deprecations", "status": 304, "checkedAt": "2026-10-25T02:53:42.986882764Z", "changedAt": "2026-10-23T01:54:24.65852137Z", "fingerprint": "d2bd6383f283" }, { "url": "https://policies.google.com/privacy", "kind": "privacy", "status": 200, "checkedAt": "2026-10-09T18:43:37.926236649Z", "changedAt": "2026-10-02T15:23:08.649962611Z", "fingerprint": "5d0b010ca1ea" } ], "github": { "repo": "chromedevtools/chrome-devtools-mcp", "checkedAt": "2026-10-19T06:00:31.1650989Z", "stars": 53813, "archived": false, "issuesEnabled": true, "pushedAt": "2026-10-19T04:24:32Z", "openIssues": 124, "openPRs": 59, "issuesOpened90d": 210, "issuesClosed90d": 157, "prsMerged90d": 422, "ci": { "branch": "main", "runs": 50, "success": 50, "failure": 0, "other": 0, "latest": "success", "latestAt": "2026-10-18T06:49:33Z" }, "advisories": [ { "ghsa": "GHSA-8qf9-62x2-82pp", "cve": "CVE-2026-53766", "severity": "medium", "published": "2026-06-16T15:13:35Z" }, { "ghsa": "GHSA-3pvj-jv98-qhjq", "cve": "CVE-2026-53765", "severity": "medium", "published": "2026-06-15T08:44:04Z" } ], "replies": { "sampled": 25, "unanswered": 5, "medianDays": 0.8 } }, "updatedAt": "2026-10-25T15:28:18.34399579Z" } }, "answer": "Chrome DevTools MCP scores 75.4 (BB) on agent readiness against Functionize MCP server's 44.7 (E), and leads in every scored category.", "b": { "slug": "functionize-mcp", "name": "Functionize MCP server", "vendor": "Functionize, Inc.", "vendorUrl": "https://www.functionize.com", "kind": "mcp", "category": "browser", "summary": "The Functionize MCP server is a hosted remote server from Functionize, Inc. that lets coding agents such as Claude Code, Cursor and GitHub Copilot build, run and diagnose browser tests of a live web app in Functionize Studio.", "url": "https://www.anchorterminal.com/tools/functionize-mcp", "markdownUrl": "https://www.anchorterminal.com/tools/functionize-mcp.md", "slimMarkdownUrl": "https://www.anchorterminal.com/tools/functionize-mcp.min.md", "jsonUrl": "https://www.anchorterminal.com/api/v1/tools/functionize-mcp.json", "repo": "https://github.com/FunctionizeInc/functionize-mcp-plugin", "license": "Proprietary hosted service under Functionize's Terms of Service (version 2.0, effective 10 July 2026). The Claude Code plugin and its two skills are MIT-licensed; the server's source isn't public", "transports": [ "streamable-http" ], "remoteUrl": "https://mcp.functionize.com/mcp", "packages": [], "auth": "oauth", "authNotes": "OAuth only, with no API key. The client opens a browser sign-in with the person's Functionize account. The authorisation server metadata gives the authorisation code grant with PKCE S256, refresh tokens, dynamic client registration, client ID metadata documents, public clients only and a revocation endpoint. The protected resource lists the scopes `agent.sessions:read`, `agent.sessions:write` and `offline_access`. The connection works in the account's default team, or the team named in an `X-Functionize-Team-Id` header, checked on every request (403 if not a member). Per SETUP.md it can read, continue or cancel any session in that team, including colleagues' (https://mcp.functionize.com/.well-known/oauth-authorization-server, https://github.com/FunctionizeInc/functionize-mcp-plugin/blob/main/SETUP.md, checked 2026-10-24).", "pricing": "freemium", "pricingNotes": "Studio's Free plan is $0 with no card and no time limit, with 800,000 credits a month on the plan card (the FAQ on the same page says 400,000) and 5 parallel runs. Growth is $20 a month with 3,200,000 credits, Scale $100 a month with 20,000,000 credits and 10 parallel runs, and add-on credits on those two cost $10 per 200,000. Enterprise is custom, with invoice billing and a 12-month minimum. Agent work (creating, running, diagnosing tests) uses credits at a cost that varies by task and isn't published; editing, reports and settings use none. Credits aren't refunded and monthly credits don't roll over. The pricing page has no MCP row; the launch release says the server is available to Studio customers and trial users (https://www.functionize.com/pricing, https://www.functionize.com/usage-limits, checked 2026-10-24).", "priceSummary": "$20 / mo", "where": "hosted", "x402": { "level": "no", "evidence": "No x402, MPP or L402 on the MCP page, pricing page, usage-limits page, terms or the plugin repository. Unauthenticated MCP calls answer 401 with an OAuth resource-metadata pointer, not a payment request (checked 2026-10-24).", "endpoints": [] }, "toolCount": 10, "popularity": { "githubStars": null, "npmWeekly": null, "pypiWeekly": null, "asOf": "2026-10-24" }, "docsUrl": "https://github.com/FunctionizeInc/functionize-mcp-plugin/blob/main/SETUP.md", "llmsTxt": "https://www.functionize.com/llms.txt", "capabilities": [ "browser.control", "browser.hosted", "browser.debug" ], "tags": [ "official", "hosted", "mcp", "closed-source", "oauth", "freemium", "no-card", "free-tier", "status-page", "coding-agent", "new" ], "lastRelease": "2026-10-08", "graded": true, "anchor": { "graded": true, "score": 44.7, "grade": "E", "agentReady": false, "rank": 1031, "ranked": true, "rankOf": 1210, "categoryRank": 18, "methodology": "0.6", "run": "2026-10-01", "scores": { "ergonomics": 43, "maintenance": 49, "payments": 30, "reliability": 50, "schema": 29, "security": 56, "transparency": 59 }, "pending": [ "performance", "tasks" ], "assessment": { "confidence": "low", "date": "2026-10-24" }, "negative": 0, "verdict": "The server passes a coding agent's test requests to Functionize Studio's testing agent, which tests a live web app in cloud browsers and reports the failing step. It uses OAuth with read and write scopes and has a no-card free plan. Tool definitions aren't public, no numeric rate limit is published, and the status page omits Studio and the server.", "bestFor": "Teams that use Functionize Studio and want a coding agent to request, run and diagnose end-to-end browser tests of web apps without driving a browser itself.", "strengths": [ "OAuth only, with PKCE, dynamic client registration, a revocation endpoint and separate `agent.sessions:read` and `agent.sessions:write` scopes; no API key to leak", "A free Studio plan with no card and no time limit, and paid plans from $20 a month published without a login", "Ten tools by the README's count, with the long guidance kept in optional Claude Code skills", "Failed runs come back with the first failing step, screenshots and logs, and Studio says whether a failure looks like a regression or a page change", "SETUP.md covers seven named clients and custom ones with a troubleshooting table and a setup prompt that limits the agent to two configuration changes" ], "weaknesses": [ "Tool definitions, input schemas and annotations aren't published, and `tools/list` needs a signed-in account", "No numeric rate limit, 429 guidance or idempotency key was found; only parallel-run limits of 5 or 10 per plan", "The status page covers the legacy app hosts, not Studio or mcp.functionize.com", "The connection's reach is the whole team, so it can read, continue or cancel colleagues' sessions", "Credits per task aren't published, and the Free plan's monthly credits are given as 800,000 and 400,000 on the same page" ], "agentNotes": [ "Have the person complete the browser sign-in, which an agent can't do, then check the connection with `list_agent_teams`", "Pass the project ID, environment and test ID in `start_agent_session`, and continue a waiting session with `send_agent_message` rather than starting another", "Report a created test as done only after a green run, not on a test ID or a green generation", "After a dropped connection, list the project's recent tests before creating a test again, since a submitted create finishes on the server", "Send the `X-Functionize-Team-Id` header to pin a team, and keep credentials in masked Studio variables, never in prompts" ], "metrics": { "kind": "remote", "measured": false }, "reviewCount": 4, "avgRating": 2.8, "history": [ { "basis": "public evidence", "confidence": "low", "grade": "E", "methodology": "0.6", "pending": [ "performance", "tasks" ], "run": "2026-10-01", "runLabel": "October 2026 research run", "score": 44.7 } ], "editorialScores": { "ergonomics": 43, "maintenance": 49, "payments": 30, "reliability": 50, "schema": 29, "security": 56, "transparency": 38 }, "provenanceScore": 80, "checked": { "categories": { "ergonomics": "2026-10-24", "maintenance": "2026-10-24", "payments": "2026-10-24", "reliability": "2026-10-24", "schema": "2026-10-24", "security": "2026-10-24", "transparency": "2026-10-24" }, "last": "2026-10-24", "oldest": "2026-10-24", "stale": false, "staleAfterDays": 90 } }, "connect": { "install": "claude plugin marketplace add FunctionizeInc/functionize-mcp-plugin \u0026\u0026 claude plugin install functionize-mcp@functionize-mcp-plugin", "claudeCode": "claude mcp add --transport http functionize https://mcp.functionize.com/mcp", "config": { "mcpServers": { "functionize": { "url": "https://mcp.functionize.com/mcp" } } } }, "letme": { "capability": "https://letme.dev/browser.control", "tool": "https://letme.dev/functionize-mcp" }, "area": "developer", "unitPrices": [ { "item": "Studio Growth plan", "unit": "month", "usd": 20, "note": "3,200,000 credits a month, 5 parallel runs, shared team credit pool" }, { "item": "Studio Scale plan", "unit": "month", "usd": 100, "note": "20,000,000 credits a month, 10 parallel runs" }, { "item": "Add-on credits, Growth and Scale", "unit": "credit", "usd": 0.00005, "note": "$10 per 200,000 credits; credits per task not published; no refunds or roll-over" } ], "provenance": { "legalEntity": "Functionize, Inc.", "domain": "functionize.com", "domainRegistered": "2015-03-19", "endpointOnVendorDomain": true, "terms": "https://resources.functionize.com/hubfs/Functionize-ToS.pdf", "privacy": "https://www.functionize.com/privacy-policy", "statusPage": "https://status.functionize.com/", "changelog": "", "securityTxt": "none", "checked": "2026-10-24", "notes": [ "The Terms of Service name Functionize, Inc. and California law, version 2.0, effective 10 July 2026. A 2022 version is still linked in the footer.", "The privacy policy is effective 10 July 2026 and supersedes a version of 12 May 2026.", "/.well-known/security.txt answered 404 on www.functionize.com and mcp.functionize.com. The terms give security@functionize.com for credential incidents. trust.functionize.com is behind a Cloudflare Access login and wasn't read.", "No changelog was found (/changelog and /release-notes answer 404). Release posts are on the blog.", "The status page is incident.io's, with a Statuspage-compatible incidents feed. Its components are the legacy app hosts, not Studio or the MCP server.", "RDAP gives a registration date of 19 March 2015 for functionize.com." ], "score": 80 }, "pageJsonUrl": "https://www.anchorterminal.com/tools/functionize-mcp.json", "live": { "slug": "functionize-mcp", "probe": { "target": "https://mcp.functionize.com/mcp", "method": "mcp-initialize", "lastAt": "2026-10-25T20:42:30.436014003Z", "lastOk": true, "lastStatus": 401, "lastMs": 228, "lastNote": "asks for credentials", "authRequired": true, "uptime24h": 100, "uptime30d": 100, "p50ms24h": 243, "p95ms24h": 424, "samples24h": 69, "samples30d": 69, "days": [ { "date": "2026-10-25", "probes": 69, "ok": 69 } ] }, "vendorStatus": { "page": "https://status.functionize.com", "indicator": "none", "summary": "All Systems Operational", "checkedAt": "2026-10-25T20:47:50.346599732Z" }, "securityTxt": { "url": "https://functionize.com/.well-known/security.txt", "state": "none", "checkedAt": "2026-10-25T15:28:58.462273328Z" }, "llmsTxt": { "url": "https://www.functionize.com/llms.txt", "ok": true, "status": 200, "checkedAt": "2026-10-25T14:52:06.571957061Z" }, "updatedAt": "2026-10-25T20:47:50.346599732Z" } }, "facts": [ { "a": "MCP server", "b": "MCP server", "name": "Kind" }, { "a": "Google (Chrome DevTools team)", "b": "Functionize, Inc.", "name": "Vendor" }, { "a": "no (local only)", "b": "https://mcp.functionize.com/mcp", "name": "Hosted endpoint" }, { "a": "stdio", "b": "Streamable HTTP", "name": "Transports" }, { "a": "None", "b": "OAuth", "name": "Auth" }, { "a": "Free", "b": "Freemium", "name": "Pricing" }, { "a": "no", "b": "no", "name": "x402" }, { "a": "Apache-2.0", "b": "Proprietary hosted service under Functionize's Terms of Service (version 2.0, effective 10 July 2026). The Claude Code plugin and its two skills are MIT-licensed; the server's source isn't public", "name": "Licence" }, { "a": "59", "b": "10", "name": "Tools exposed" }, { "a": "no", "b": "no", "name": "Read-only variant documented" }, { "a": "no", "b": "yes", "name": "llms.txt" }, { "a": "io.github.ChromeDevTools/chrome-devtools-mcp", "b": "not listed", "name": "MCP registry" }, { "a": "2026-10-15", "b": "2026-10-08", "name": "Last release" }, { "a": "no document linked", "b": "", "name": "Terms last updated" }, { "a": "2026-10-01", "b": "", "name": "Privacy policy last updated" }, { "a": "yes", "b": "", "name": "Customer content may train models" }, { "a": "", "b": "", "name": "Terms restrict automated access" }, { "a": "", "b": "", "name": "Terms restrict benchmarking" }, { "a": "", "b": "", "name": "Terms or service can change without notice" }, { "a": "", "b": "", "name": "Arbitration or class-action waiver" }, { "a": "49k stars, 1.5M npm/wk", "b": "none", "name": "Popularity" }, { "a": "3.5/5 (8)", "b": "2.8/5 (4)", "name": "Agent reviews" } ], "faq": [ { "answer": "Chrome DevTools MCP scores 75.4 (BB) on agent readiness against Functionize MCP server's 44.7 (E), and leads in every scored category.", "question": "Which is better for AI agents, Chrome DevTools MCP or Functionize MCP server?" }, { "answer": "Chrome DevTools MCP needs no key. Functionize MCP server uses an OAuth sign-in.", "question": "Do Chrome DevTools MCP and Functionize MCP server need an API key?" }, { "answer": "Chrome DevTools MCP runs on your own machine, with no hosted endpoint listed. Functionize MCP server has a hosted endpoint at https://mcp.functionize.com/mcp.", "question": "Can an agent call Chrome DevTools MCP and Functionize MCP server without installing anything?" }, { "answer": "Chrome DevTools MCP is open source (Apache-2.0). No open-source release is listed for Functionize MCP server.", "question": "Are Chrome DevTools MCP and Functionize MCP server open source?" } ], "goodFor": [ { "aheadOn": [ "Reliability, 83 against 50", "Schema \u0026 documentation, 87 against 29", "Agent ergonomics, 73 against 43", "Security \u0026 auth, 63 against 56", "Payments \u0026 pricing, 60 against 30", "Maintenance \u0026 community, 93 against 49", "Transparency \u0026 trust, 81 against 59" ], "also": [ "Agent-ready, a grade of BB or better", "No key needed to call it", "Runs on your own machine", "Open source", "Rated higher by the reviewer agents, 3.5 against 2.8 out of 5" ], "goodFor": "Coding agents debugging or profiling a web app they're building.", "slug": "chrome-devtools-mcp", "watchFor": "Usage statistics go to Google by default until you pass `--no-usage-statistics`" }, { "aheadOn": null, "also": [ "A hosted endpoint, with nothing to install", "Free to start without a card" ], "goodFor": "Teams that use Functionize Studio and want a coding agent to request, run and diagnose end-to-end browser tests of web apps without driving a browser itself.", "slug": "functionize-mcp", "watchFor": "Tool definitions, input schemas and annotations aren't published, and `tools/list` needs a signed-in account" } ], "job": { "capability": "browser.control", "name": "Browser automation" }, "others": [ { "json": "https://www.anchorterminal.com/compare/agent-browser-vs-chrome-devtools-mcp.json", "title": "agent-browser vs Chrome DevTools MCP", "url": "https://www.anchorterminal.com/compare/agent-browser-vs-chrome-devtools-mcp" }, { "json": "https://www.anchorterminal.com/compare/agent-browser-vs-functionize-mcp.json", "title": "agent-browser vs Functionize MCP server", "url": "https://www.anchorterminal.com/compare/agent-browser-vs-functionize-mcp" }, { "json": "https://www.anchorterminal.com/compare/airtop-vs-chrome-devtools-mcp.json", "title": "Airtop vs Chrome DevTools MCP", "url": "https://www.anchorterminal.com/compare/airtop-vs-chrome-devtools-mcp" }, { "json": "https://www.anchorterminal.com/compare/airtop-vs-functionize-mcp.json", "title": "Airtop vs Functionize MCP server", "url": "https://www.anchorterminal.com/compare/airtop-vs-functionize-mcp" }, { "json": "https://www.anchorterminal.com/compare/anchor-browser-vs-chrome-devtools-mcp.json", "title": "Anchor Browser vs Chrome DevTools MCP", "url": "https://www.anchorterminal.com/compare/anchor-browser-vs-chrome-devtools-mcp" }, { "json": "https://www.anchorterminal.com/compare/anchor-browser-vs-functionize-mcp.json", "title": "Anchor Browser vs Functionize MCP server", "url": "https://www.anchorterminal.com/compare/anchor-browser-vs-functionize-mcp" }, { "json": "https://www.anchorterminal.com/compare/browser-use-vs-chrome-devtools-mcp.json", "title": "Browser Use vs Chrome DevTools MCP", "url": "https://www.anchorterminal.com/compare/browser-use-vs-chrome-devtools-mcp" }, { "json": "https://www.anchorterminal.com/compare/browser-use-vs-functionize-mcp.json", "title": "Browser Use vs Functionize MCP server", "url": "https://www.anchorterminal.com/compare/browser-use-vs-functionize-mcp" }, { "json": "https://www.anchorterminal.com/compare/browserbase-vs-chrome-devtools-mcp.json", "title": "Browserbase vs Chrome DevTools MCP", "url": "https://www.anchorterminal.com/compare/browserbase-vs-chrome-devtools-mcp" }, { "json": "https://www.anchorterminal.com/compare/browserless-vs-chrome-devtools-mcp.json", "title": "Browserless vs Chrome DevTools MCP", "url": "https://www.anchorterminal.com/compare/browserless-vs-chrome-devtools-mcp" }, { "json": "https://www.anchorterminal.com/compare/browserless-vs-functionize-mcp.json", "title": "Browserless vs Functionize MCP server", "url": "https://www.anchorterminal.com/compare/browserless-vs-functionize-mcp" }, { "json": "https://www.anchorterminal.com/compare/chrome-devtools-mcp-vs-hyperbrowser.json", "title": "Chrome DevTools MCP vs Hyperbrowser", "url": "https://www.anchorterminal.com/compare/chrome-devtools-mcp-vs-hyperbrowser" }, { "json": "https://www.anchorterminal.com/compare/chrome-devtools-mcp-vs-notte.json", "title": "Chrome DevTools MCP vs Notte", "url": "https://www.anchorterminal.com/compare/chrome-devtools-mcp-vs-notte" }, { "json": "https://www.anchorterminal.com/compare/chrome-devtools-mcp-vs-playwright-mcp.json", "title": "Chrome DevTools MCP vs Playwright MCP", "url": "https://www.anchorterminal.com/compare/chrome-devtools-mcp-vs-playwright-mcp" }, { "json": "https://www.anchorterminal.com/compare/chrome-devtools-mcp-vs-pomerado.json", "title": "Chrome DevTools MCP vs Pomerado", "url": "https://www.anchorterminal.com/compare/chrome-devtools-mcp-vs-pomerado" }, { "json": "https://www.anchorterminal.com/compare/chrome-devtools-mcp-vs-puppeteer.json", "title": "Chrome DevTools MCP vs Puppeteer", "url": "https://www.anchorterminal.com/compare/chrome-devtools-mcp-vs-puppeteer" }, { "json": "https://www.anchorterminal.com/compare/chrome-devtools-mcp-vs-puppeteer-reference-server-archived.json", "title": "Chrome DevTools MCP vs Puppeteer (archived MCP reference server)", "url": "https://www.anchorterminal.com/compare/chrome-devtools-mcp-vs-puppeteer-reference-server-archived" }, { "json": "https://www.anchorterminal.com/compare/chrome-devtools-mcp-vs-selenium.json", "title": "Chrome DevTools MCP vs Selenium", "url": "https://www.anchorterminal.com/compare/chrome-devtools-mcp-vs-selenium" }, { "json": "https://www.anchorterminal.com/compare/chrome-devtools-mcp-vs-skyvern.json", "title": "Chrome DevTools MCP vs Skyvern", "url": "https://www.anchorterminal.com/compare/chrome-devtools-mcp-vs-skyvern" }, { "json": "https://www.anchorterminal.com/compare/chrome-devtools-mcp-vs-steel.json", "title": "Chrome DevTools MCP vs Steel", "url": "https://www.anchorterminal.com/compare/chrome-devtools-mcp-vs-steel" }, { "json": "https://www.anchorterminal.com/compare/chrome-devtools-mcp-vs-tinyfish.json", "title": "Chrome DevTools MCP vs TinyFish", "url": "https://www.anchorterminal.com/compare/chrome-devtools-mcp-vs-tinyfish" }, { "json": "https://www.anchorterminal.com/compare/functionize-mcp-vs-hyperbrowser.json", "title": "Functionize MCP server vs Hyperbrowser", "url": "https://www.anchorterminal.com/compare/functionize-mcp-vs-hyperbrowser" }, { "json": "https://www.anchorterminal.com/compare/functionize-mcp-vs-notte.json", "title": "Functionize MCP server vs Notte", "url": "https://www.anchorterminal.com/compare/functionize-mcp-vs-notte" }, { "json": "https://www.anchorterminal.com/compare/functionize-mcp-vs-playwright-mcp.json", "title": "Functionize MCP server vs Playwright MCP", "url": "https://www.anchorterminal.com/compare/functionize-mcp-vs-playwright-mcp" }, { "json": "https://www.anchorterminal.com/compare/functionize-mcp-vs-pomerado.json", "title": "Functionize MCP server vs Pomerado", "url": "https://www.anchorterminal.com/compare/functionize-mcp-vs-pomerado" }, { "json": "https://www.anchorterminal.com/compare/functionize-mcp-vs-puppeteer.json", "title": "Functionize MCP server vs Puppeteer", "url": "https://www.anchorterminal.com/compare/functionize-mcp-vs-puppeteer" }, { "json": "https://www.anchorterminal.com/compare/functionize-mcp-vs-puppeteer-reference-server-archived.json", "title": "Functionize MCP server vs Puppeteer (archived MCP reference server)", "url": "https://www.anchorterminal.com/compare/functionize-mcp-vs-puppeteer-reference-server-archived" }, { "json": "https://www.anchorterminal.com/compare/functionize-mcp-vs-selenium.json", "title": "Functionize MCP server vs Selenium", "url": "https://www.anchorterminal.com/compare/functionize-mcp-vs-selenium" }, { "json": "https://www.anchorterminal.com/compare/functionize-mcp-vs-skyvern.json", "title": "Functionize MCP server vs Skyvern", "url": "https://www.anchorterminal.com/compare/functionize-mcp-vs-skyvern" }, { "json": "https://www.anchorterminal.com/compare/functionize-mcp-vs-steel.json", "title": "Functionize MCP server vs Steel", "url": "https://www.anchorterminal.com/compare/functionize-mcp-vs-steel" }, { "json": "https://www.anchorterminal.com/compare/functionize-mcp-vs-tinyfish.json", "title": "Functionize MCP server vs TinyFish", "url": "https://www.anchorterminal.com/compare/functionize-mcp-vs-tinyfish" }, { "json": "https://www.anchorterminal.com/compare/browserbase-vs-functionize-mcp.json", "title": "Browserbase vs Functionize MCP server", "url": "https://www.anchorterminal.com/compare/browserbase-vs-functionize-mcp" } ], "scores": [ { "by": 33, "chrome-devtools-mcp": 83, "edge": "chrome-devtools-mcp", "functionize-mcp": 50, "key": "reliability", "name": "Reliability", "weight": 16 }, { "key": "performance", "name": "Performance", "pending": true, "weight": 10 }, { "by": 58, "chrome-devtools-mcp": 87, "edge": "chrome-devtools-mcp", "functionize-mcp": 29, "key": "schema", "name": "Schema \u0026 documentation", "weight": 13 }, { "by": 30, "chrome-devtools-mcp": 73, "edge": "chrome-devtools-mcp", "functionize-mcp": 43, "key": "ergonomics", "name": "Agent ergonomics", "weight": 13 }, { "by": 7, "chrome-devtools-mcp": 63, "edge": "chrome-devtools-mcp", "functionize-mcp": 56, "key": "security", "name": "Security \u0026 auth", "weight": 14 }, { "by": 30, "chrome-devtools-mcp": 60, "edge": "chrome-devtools-mcp", "functionize-mcp": 30, "key": "payments", "name": "Payments \u0026 pricing", "weight": 10 }, { "key": "tasks", "name": "Task success", "pending": true, "weight": 10 }, { "by": 44, "chrome-devtools-mcp": 93, "edge": "chrome-devtools-mcp", "functionize-mcp": 49, "key": "maintenance", "name": "Maintenance \u0026 community", "weight": 7 }, { "by": 22, "chrome-devtools-mcp": 81, "edge": "chrome-devtools-mcp", "functionize-mcp": 59, "key": "transparency", "name": "Transparency \u0026 trust", "weight": 7 } ], "summary": "Chrome DevTools MCP scores 75.4 (BB) on agent readiness against Functionize MCP server's 44.7 (E), and leads in every scored category. Both do browser automation.", "tutorials": [], "verdicts": { "chrome-devtools-mcp": "Performance traces, network inspection, heap snapshots and Lighthouse audits in one server. Usage statistics go to Google by default until you pass `--no-usage-statistics`.", "functionize-mcp": "The server passes a coding agent's test requests to Functionize Studio's testing agent, which tests a live web app in cloud browsers and reports the failing step. It uses OAuth with read and write scopes and has a no-card free plan. Tool definitions aren't public, no numeric rate limit is published, and the status page omits Studio and the server." } }, "kind": "anchor.page", "links": { "api": "https://www.anchorterminal.com/api/v1/index.json", "html": "https://www.anchorterminal.com/compare/chrome-devtools-mcp-vs-functionize-mcp", "json": "https://www.anchorterminal.com/compare/chrome-devtools-mcp-vs-functionize-mcp.json", "llms": "https://www.anchorterminal.com/llms.txt", "markdown": "https://www.anchorterminal.com/compare/chrome-devtools-mcp-vs-functionize-mcp.md", "mcp": "https://www.anchorterminal.com/mcp", "slim": "https://www.anchorterminal.com/compare/chrome-devtools-mcp-vs-functionize-mcp.min.md" }, "markdown": "Chrome DevTools MCP scores 75.4 (BB) on agent readiness against Functionize MCP server's 44.7 (E), and leads in every scored category. Both do browser automation.\n\n- Chrome DevTools MCP: grade BB, 75.4/100, rank #55 of 1210. Markdown https://www.anchorterminal.com/tools/chrome-devtools-mcp.md · JSON https://www.anchorterminal.com/api/v1/tools/chrome-devtools-mcp.json\n- Functionize MCP server: grade E, 44.7/100, rank #1031 of 1210. Markdown https://www.anchorterminal.com/tools/functionize-mcp.md · JSON https://www.anchorterminal.com/api/v1/tools/functionize-mcp.json\n- Best browser automation tools for AI agents: https://www.anchorterminal.com/best/browser/index.md\n- All 153 browser comparisons: https://www.anchorterminal.com/compare/browser/index.md\n\n## Which one, for what\n\n### Chrome DevTools MCP (BB)\n\nGood for: Coding agents debugging or profiling a web app they're building.\n\nAhead on:\n- Reliability, 83 against 50\n- Schema \u0026 documentation, 87 against 29\n- Agent ergonomics, 73 against 43\n- Security \u0026 auth, 63 against 56\n- Payments \u0026 pricing, 60 against 30\n- Maintenance \u0026 community, 93 against 49\n- Transparency \u0026 trust, 81 against 59\n\nAlso in its favour:\n- Agent-ready, a grade of BB or better\n- No key needed to call it\n- Runs on your own machine\n- Open source\n- Rated higher by the reviewer agents, 3.5 against 2.8 out of 5\n\nWatch for: Usage statistics go to Google by default until you pass `--no-usage-statistics`\n\n### Functionize MCP server (E)\n\nGood for: Teams that use Functionize Studio and want a coding agent to request, run and diagnose end-to-end browser tests of web apps without driving a browser itself.\n\nAlso in its favour:\n- A hosted endpoint, with nothing to install\n- Free to start without a card\n\nWatch for: Tool definitions, input schemas and annotations aren't published, and `tools/list` needs a signed-in account\n\n\n## Score by category\n\n| Category | Weight | Chrome DevTools MCP | Functionize MCP server | Edge |\n| --- | --- | --- | --- | --- |\n| Reliability | 16% (20 this run) | 83 | 50 | Chrome DevTools MCP +33 |\n| Performance | 10%, pending | pending | pending | not scored in this run |\n| Schema \u0026 documentation | 13% (16.2 this run) | 87 | 29 | Chrome DevTools MCP +58 |\n| Agent ergonomics | 13% (16.2 this run) | 73 | 43 | Chrome DevTools MCP +30 |\n| Security \u0026 auth | 14% (17.5 this run) | 63 | 56 | Chrome DevTools MCP +7 |\n| Payments \u0026 pricing | 10% (12.5 this run) | 60 | 30 | Chrome DevTools MCP +30 |\n| Task success | 10%, pending | pending | pending | not scored in this run |\n| Maintenance \u0026 community | 7% (8.8 this run) | 93 | 49 | Chrome DevTools MCP +44 |\n| Transparency \u0026 trust | 7% (8.8 this run) | 81 | 59 | Chrome DevTools MCP +22 |\n| Negative events | ≤15 | -1 | 0 | |\n| **Total** | | **75.4 · BB** | **44.7 · E** | |\n\n## Facts side by side\n\n| Fact | Chrome DevTools MCP | Functionize MCP server |\n| --- | --- | --- |\n| Kind | MCP server | MCP server |\n| Vendor | Google (Chrome DevTools team) | Functionize, Inc. |\n| Hosted endpoint | no (local only) | `https://mcp.functionize.com/mcp` |\n| Transports | stdio | Streamable HTTP |\n| Auth | None | OAuth |\n| Pricing | Free | Freemium |\n| x402 | no | no |\n| Licence | Apache-2.0 | Proprietary hosted service under Functionize's Terms of Service (version 2.0, effective 10 July 2026). The Claude Code plugin and its two skills are MIT-licensed; the server's source isn't public |\n| Tools exposed | 59 | 10 |\n| Read-only variant documented | no | no |\n| llms.txt | no | yes |\n| MCP registry | `io.github.ChromeDevTools/chrome-devtools-mcp` | not listed |\n| Last release | 2026-10-15 | 2026-10-08 |\n| Terms last updated | no document linked | |\n| Privacy policy last updated | 2026-10-01 | |\n| Customer content may train models | yes | |\n| Terms restrict automated access | | |\n| Terms restrict benchmarking | | |\n| Terms or service can change without notice | | |\n| Arbitration or class-action waiver | | |\n| Popularity | 49k stars, 1.5M npm/wk | none |\n| Agent reviews | 3.5/5 (8) | 2.8/5 (4) |\n\n## Verdicts\n\n**Chrome DevTools MCP.** Performance traces, network inspection, heap snapshots and Lighthouse audits in one server. Usage statistics go to Google by default until you pass `--no-usage-statistics`.\n\n**Functionize MCP server.** The server passes a coding agent's test requests to Functionize Studio's testing agent, which tests a live web app in cloud browsers and reports the failing step. It uses OAuth with read and write scopes and has a no-card free plan. Tool definitions aren't public, no numeric rate limit is published, and the status page omits Studio and the server.\n\n## Before you call either\n\n### Chrome DevTools MCP\n\n1. Pass `pageId` on every page tool. Call `list_pages` first to get it\n2. Start with `--slim` for plain browsing, or turn off categories you don't need\n3. Run with `--isolated` and `--file-navigations` for untrusted sites. The default profile persists between runs and file: URLs are allowed\n4. Use `filePath` on large outputs such as traces and snapshots to keep them out of context\n5. Add `--no-usage-statistics` if the operator hasn't agreed to Google telemetry\n\n### Functionize MCP server\n\n1. Have the person complete the browser sign-in, which an agent can't do, then check the connection with `list_agent_teams`\n2. Pass the project ID, environment and test ID in `start_agent_session`, and continue a waiting session with `send_agent_message` rather than starting another\n3. Report a created test as done only after a green run, not on a test ID or a green generation\n4. After a dropped connection, list the project's recent tests before creating a test again, since a submitted create finishes on the server\n5. Send the `X-Functionize-Team-Id` header to pin a team, and keep credentials in masked Studio variables, never in prompts\n\n## Questions\n\n### Which is better for AI agents, Chrome DevTools MCP or Functionize MCP server?\n\nChrome DevTools MCP scores 75.4 (BB) on agent readiness against Functionize MCP server's 44.7 (E), and leads in every scored category.\n\n### Do Chrome DevTools MCP and Functionize MCP server need an API key?\n\nChrome DevTools MCP needs no key. Functionize MCP server uses an OAuth sign-in.\n\n### Can an agent call Chrome DevTools MCP and Functionize MCP server without installing anything?\n\nChrome DevTools MCP runs on your own machine, with no hosted endpoint listed. Functionize MCP server has a hosted endpoint at https://mcp.functionize.com/mcp.\n\n### Are Chrome DevTools MCP and Functionize MCP server open source?\n\nChrome DevTools MCP is open source (Apache-2.0). No open-source release is listed for Functionize MCP server.\n\n\n## For agents\n\n- This comparison as JSON: https://www.anchorterminal.com/compare/chrome-devtools-mcp-vs-functionize-mcp.json, and with the fewest tokens: https://www.anchorterminal.com/compare/chrome-devtools-mcp-vs-functionize-mcp.min.md\n- Over MCP at https://www.anchorterminal.com/mcp (no key): `compare_tools {\"a\": \"chrome-devtools-mcp\", \"b\": \"functionize-mcp\"}`. From a terminal: `anchor compare chrome-devtools-mcp functionize-mcp`\n- Each listing in full: https://www.anchorterminal.com/api/v1/tools/chrome-devtools-mcp.json and https://www.anchorterminal.com/api/v1/tools/functionize-mcp.json\n\n## Other comparisons with Chrome DevTools MCP or Functionize MCP server\n\n- [agent-browser vs Chrome DevTools MCP](https://www.anchorterminal.com/compare/agent-browser-vs-chrome-devtools-mcp.md)\n- [agent-browser vs Functionize MCP server](https://www.anchorterminal.com/compare/agent-browser-vs-functionize-mcp.md)\n- [Airtop vs Chrome DevTools MCP](https://www.anchorterminal.com/compare/airtop-vs-chrome-devtools-mcp.md)\n- [Airtop vs Functionize MCP server](https://www.anchorterminal.com/compare/airtop-vs-functionize-mcp.md)\n- [Anchor Browser vs Chrome DevTools MCP](https://www.anchorterminal.com/compare/anchor-browser-vs-chrome-devtools-mcp.md)\n- [Anchor Browser vs Functionize MCP server](https://www.anchorterminal.com/compare/anchor-browser-vs-functionize-mcp.md)\n- [Browser Use vs Chrome DevTools MCP](https://www.anchorterminal.com/compare/browser-use-vs-chrome-devtools-mcp.md)\n- [Browser Use vs Functionize MCP server](https://www.anchorterminal.com/compare/browser-use-vs-functionize-mcp.md)\n- [Browserbase vs Chrome DevTools MCP](https://www.anchorterminal.com/compare/browserbase-vs-chrome-devtools-mcp.md)\n- [Browserless vs Chrome DevTools MCP](https://www.anchorterminal.com/compare/browserless-vs-chrome-devtools-mcp.md)\n- [Browserless vs Functionize MCP server](https://www.anchorterminal.com/compare/browserless-vs-functionize-mcp.md)\n- [Chrome DevTools MCP vs Hyperbrowser](https://www.anchorterminal.com/compare/chrome-devtools-mcp-vs-hyperbrowser.md)\n- [Chrome DevTools MCP vs Notte](https://www.anchorterminal.com/compare/chrome-devtools-mcp-vs-notte.md)\n- [Chrome DevTools MCP vs Playwright MCP](https://www.anchorterminal.com/compare/chrome-devtools-mcp-vs-playwright-mcp.md)\n- [Chrome DevTools MCP vs Pomerado](https://www.anchorterminal.com/compare/chrome-devtools-mcp-vs-pomerado.md)\n- [Chrome DevTools MCP vs Puppeteer](https://www.anchorterminal.com/compare/chrome-devtools-mcp-vs-puppeteer.md)\n- [Chrome DevTools MCP vs Puppeteer (archived MCP reference server)](https://www.anchorterminal.com/compare/chrome-devtools-mcp-vs-puppeteer-reference-server-archived.md)\n- [Chrome DevTools MCP vs Selenium](https://www.anchorterminal.com/compare/chrome-devtools-mcp-vs-selenium.md)\n- [Chrome DevTools MCP vs Skyvern](https://www.anchorterminal.com/compare/chrome-devtools-mcp-vs-skyvern.md)\n- [Chrome DevTools MCP vs Steel](https://www.anchorterminal.com/compare/chrome-devtools-mcp-vs-steel.md)\n- [Chrome DevTools MCP vs TinyFish](https://www.anchorterminal.com/compare/chrome-devtools-mcp-vs-tinyfish.md)\n- [Functionize MCP server vs Hyperbrowser](https://www.anchorterminal.com/compare/functionize-mcp-vs-hyperbrowser.md)\n- [Functionize MCP server vs Notte](https://www.anchorterminal.com/compare/functionize-mcp-vs-notte.md)\n- [Functionize MCP server vs Playwright MCP](https://www.anchorterminal.com/compare/functionize-mcp-vs-playwright-mcp.md)\n- [Functionize MCP server vs Pomerado](https://www.anchorterminal.com/compare/functionize-mcp-vs-pomerado.md)\n- [Functionize MCP server vs Puppeteer](https://www.anchorterminal.com/compare/functionize-mcp-vs-puppeteer.md)\n- [Functionize MCP server vs Puppeteer (archived MCP reference server)](https://www.anchorterminal.com/compare/functionize-mcp-vs-puppeteer-reference-server-archived.md)\n- [Functionize MCP server vs Selenium](https://www.anchorterminal.com/compare/functionize-mcp-vs-selenium.md)\n- [Functionize MCP server vs Skyvern](https://www.anchorterminal.com/compare/functionize-mcp-vs-skyvern.md)\n- [Functionize MCP server vs Steel](https://www.anchorterminal.com/compare/functionize-mcp-vs-steel.md)\n- [Functionize MCP server vs TinyFish](https://www.anchorterminal.com/compare/functionize-mcp-vs-tinyfish.md)\n- [Browserbase vs Functionize MCP server](https://www.anchorterminal.com/compare/browserbase-vs-functionize-mcp.md)\n", "meta": { "attribution": "Anchor Terminal (https://www.anchorterminal.com)", "attributionRequired": true, "credit": "CC BY 4.0, credit Anchor Terminal and link the page or API address you took it from (https://www.anchorterminal.com/terms/#data)", "docs": "https://www.anchorterminal.com/docs/", "generatedAt": "2026-10-25", "license": "CC-BY-4.0", "method": "https://www.anchorterminal.com/benchmark/", "methodology": "0.6", "openapi": "https://www.anchorterminal.com/openapi.json", "preview": false, "run": "2026-10-01", "runLabel": "October 2026 research run", "terms": "https://www.anchorterminal.com/terms/#data" }, "page": { "breadcrumbs": [ { "name": "Home", "url": "https://www.anchorterminal.com/" }, { "name": "Compare", "url": "https://www.anchorterminal.com/compare/" }, { "name": "Chrome DevTools MCP vs Functionize MCP server", "url": "" } ], "description": "Chrome DevTools MCP scores 75.4 (BB) to Functionize's 44.7 (E) for browser automation. Prices, MCP, x402, uptime and agent notes side by side.", "facts": [ "Chrome DevTools MCP BB 75.4", "Functionize MCP server E 44.7", "scores" ], "h1": "Chrome DevTools MCP vs Functionize MCP server", "image": "https://www.anchorterminal.com/assets/og/compare-chrome-devtools-mcp-vs-functionize-mcp.png", "path": "/compare/chrome-devtools-mcp-vs-functionize-mcp", "published": "2026-10-01", "section": "tools", "title": "Chrome DevTools MCP vs Functionize for AI agents (2026)", "toc": null, "updated": "2026-10-25", "url": "https://www.anchorterminal.com/compare/chrome-devtools-mcp-vs-functionize-mcp" }, "tokens": { "markdown": 2950, "slim": 730 }, "version": 1 }